DocumentCode :
2651503
Title :
Localization of cardiac cavities using hierarchically search in 2D grayscale ultrasound images
Author :
De Siqueira, Mozart L. ; Müller, Daniel Nehme ; Navaux, Philippe O A
Author_Institution :
Inst. of Inf., Fed. Univ. of Rio Grande do Sul, Rio Grande
fYear :
2008
fDate :
25-28 June 2008
Firstpage :
225
Lastpage :
228
Abstract :
Fetal echocardiography is an important tool for diagnosis. This paper presents a method to provide automatic localization of cardiac structures in fetal echocardiography images, where the early diagnostics of heart congenital diseases can improve results from medical treatment. The interest structures are the four cardiac cavities. The method use a hierarchical search based on a windowing technique with mold matching to find the cardiac cavities. This mold is calculated using a probability density function that receives as parameter the gray level of a representative image and also uses spatial features of the images. The hierarchical search is performed: (i) first, the image is covered to locate the heart; (ii) then, based on the heart position, the desired structure is found. The comparison of the mold and the candidate image is made using the Euclidean Distance. One of the main characteristics of the method is its rotation invariance.
Keywords :
diseases; echocardiography; image recognition; medical image processing; ultrasonic imaging; 2D grayscale ultrasound images; Euclidean distance; cardiac cavity localization; fetal echocardiography; heart congenital diseases; hierarchical search; mold matching; pattern recognition; probability density function; rotation variance; Biomedical imaging; Echocardiography; Euclidean distance; Gray-scale; Heart; Image edge detection; Image recognition; Image segmentation; Medical diagnostic imaging; Ultrasonic imaging; Ultrasound images; hierarchical search; medical imaging; patter recognition;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Signals and Image Processing, 2008. IWSSIP 2008. 15th International Conference on
Conference_Location :
Bratislava
Print_ISBN :
978-80-227-2856-0
Electronic_ISBN :
978-80-227-2880-5
Type :
conf
DOI :
10.1109/IWSSIP.2008.4604408
Filename :
4604408
Link To Document :
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